Answer:
800%
Explanation:
Original area of land = 100ft * 33.33ft
Original area of land = 3333 ft²
Final area of land after expansion = 300ft * 100ft
Final area of land after expansion = 30,000ft²
Increment = final area - original area
Increment = 30,000 - 3333
increment = 26,667ft²
percent increase = increment/original area * 100%
percent increase = 26667/3333 * 100%
percent increase = 8.00 * 100
percent increase =800%
Hence the percent increase in square footage if Matt was able to work out a deal with the landowner to expand Jamier's plot of land 300ft by 100ft is 800%